A measurement system based on magnetic sensors for nondestructive testing

Author

Bernieri, Andrea ; Betta, Giovanni ; Rubinacci, Guglielmo ; Villone, Fabio

Author_Institution

Dept. of Autom. Electromagn., Inf. Eng. & Ind. Math., Cassino Univ., Italy

Volume

1

fYear

1999

fDate

1999

Firstpage

344

Abstract

The paper deals with a measurement system based on a low-cost eddy current probe for nondestructive testing on conducting materials aimed at reconstructing the shape and position of thin cracks. The magnetic probe is characterized, highlighting good repeatability, linearity, and overall accuracy. A number of different measurement approaches are investigated, in order to choose the more appropriate for NDT applications. A numerical method was then illustrated; it proves to be able to reconstruct cracks also starting from noisy measurement data

Keywords

coils; crack detection; eddy current testing; magnetic sensors; NDT measurement system; accuracy; coils; conducting materials; crack reconstruction; fluxset sensor; linearity; low-cost eddy current probe; magnetic sensors; noisy measurement data; repeatability; thin cracks; Conducting materials; Current measurement; Eddy currents; Linearity; Magnetic noise; Magnetic sensors; Nondestructive testing; Position measurement; Probes; Shape measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE

Conference_Location

Venice

ISSN

1091-5281

Print_ISBN

0-7803-5276-9

Type

conf

DOI

10.1109/IMTC.1999.776773

Filename

776773